We divide 831920 by 40
We want to figure out the number of times 831920 can be divided by 40.

Advancing to step 1:
8 divided by 40 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (3) from the dividend to 8 and continue with: 83 / 40

Step 2:
40 can be fit into 83 2 times, resulting in a remainder of 3.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 80 from 83, we get 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 40

Moving on to step 3:
40 can be fit into 31 0 times, resulting in a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
Deduct 0 from 31 and we're left with 31.
Grab the next digit (9) from the dividend, add it to 31, then carry on: 319 / 40

Going ahead to step 4:
319 divided by 40 is 7 with a remainder of 39.
Use 7 as the next digit of our solution. 
Result so far: 207.0
If we subtract 280 from 319, we get 39.
Include the next digit (2) from the dividend after 39, then repeat: 392 / 40

Going ahead to step 5:
When dividing 392 by 40, we get 9 with a remainder of 32.
Write down 9 as next digit of the result. 
Result so far: 2079.0
If we subtract 360 from 392, we get 32.
Include the next digit (0) from the dividend after 32, then repeat: 320 / 40

Moving on to step 6:
If we divide 320 by 40, we get 8 and a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 20798.0
The remainder is 0 after subtracting 320 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
If we divide 0 by 40, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 20798.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
The number 40 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 20798.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 20798.0 and a remainder of 0.0.